Electrode active material having core-shell structure

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United States of America Patent

PATENT NO 9349497
APP PUB NO 20140099546A1
SERIAL NO

14100590

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Abstract

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Disclosed is an electrode active material having a core-shell structure, which includes: (a) a core capable of intercalating and deintercalating lithium ions; and (b) a shell including a polymer or an oligomer having a glass transition temperature of 25° C. or less when impregnated with an electrolyte, wherein a surface of the core is coated with the shell. Also, an electrode manufactured by using the electrode active material and a secondary battery including the electrode are disclosed. The shell (b) suppresses the formation of an SEI layer during initial charge of a battery, and prevents initial capacity reduction.

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Patent Owner(s)

  • LG CHEM, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Wonseok Gyeonggi-do, KR 58 419
Choi, Seungyoun Gyeonggi-do, KR 5 85
Kim, Jeyoung Daejeon, KR 5 85
Kim, Taeyeon Seoul, KR 30 347
Lee, Seo-Jae Daejeon, KR 9 139

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